A TestKing.com technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show

题目

A TestKing.com technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command.In which OSI layer is the problem most likely occurring?（）

A. Physical

B. Data link

C. Network layer

D. Transport layer

E. Application layer

相似考题

1.A technician is troubleshooting a network connectivity issue. Given the following abbreviated traceroute output:Which of the following is MOST likely occurring?()A. Switching loopB. Broadcast stormC. IP conflictD. Routing loop

2.A Ezonexam technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command.In which OSI layer is the problem most likely occurring?A．PhysicalB．Data linkC．Network layerD．Transport layerE．Application layer

3.All WAN links is side the TestKing.com network use PPP with for authentication security. Which command will display the CHAP authentication process as it occurs between two routers in the network?()A. show CHAP authenticationB. show interface serial 0C. debug PPP authenticationD. debug CHAP authenticationE. show PPP authentication CHAP

4.A technician is troubleshooting a network connectivity issue with a user‘s desktop configured touse a static IP address. The technician notes the following configuration:Which of the following changes will allow the desktop to communicate properly with remote networks?（）A. Changing the DNS to 172.16.1.100B. Changing the WINS server to 172.174.136C. Changing the netmask to 255.255.255.0D. Changing the default gateway to 172.16.3.1

参考答案和解析
参考答案：B
更多“A TestKing.com technician is troubleshooting connectivity problems between two routers tha ”相关问题

  • 第1题：

    The relevant configuration files for the TestKing1 and TestKing2 routers are displayed below:With due consideration to the command outputs, which of the following reasons would you attribute the connectivity problem between the two routers?（）

    A. The authentication needs to be changed to PAP for both routers.

    B. The serial IP addresses of routers are not on the same subnet.

    C. The username/password combination is incorrectly configured.

    D. The router names are incorrectly configured.


    参考答案：C

  • 第2题：

    The administrator is unable to establish connectivity between two Cisco routers. Upon reviewing the command output of both routers, what is the most likely caust of the problem?()

    A.Authentication needs to be changed to PAP for both routers.

    B.Serial IP addresses of routers are not on the same subnet.

    C.Username/password is incorrectly configured.

    D.Router names are incorrectly configured.


    参考答案：C

  • 第3题：

    A TestKing.com technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command. In which OSI layer is the problem most likely occurring?（）

    • A、Physical
    • B、Data link
    • C、Network layer
    • D、Transport layer
    • E、Application layer

    正确答案:B

  • 第4题：

    You have completed an OSPF implementation, and you are verifying OSPF operation. During this verification, you notice that the OSPF route of 172.16.10.0 is repeatedly appearing and disappearing from the routing table. Further investigation finds that the OSPF CPU utilization is very high and the routers are constantly performing SPF calculations. You determine that 172.16.20.2 is the source of the 172.16.10.0 route. Using the show ip ospf database router 172.16.20.1 command, you notice that when this show command is performed repeatedly, the contents of the LSA change every few seconds. What could be the cause of this problem?（）

    • A、OSPF authentication errors between some of the routers
    • B、Two routers have the same OSPF router ID
    • C、Issues with mistuned OSPF timers
    • D、OSPF LSA pacing issues between some of the routers
    • E、OSPF neighbor adjacency problems between some of the routers

    正确答案:B

  • 第5题：

    While troubleshooting an EIGRP routing problem you notice that one of the company routers havegenerated a large number of SIA messages. What are two possible causes for EIGRP Stuck-In-Active routes？（）

    • A、Some query or reply packets are lost between the routers
    • B、The neighboring router starts receiving route updates from this router
    • C、A failure causes traffic on a link between two neighboring routers to flow in only one direction（unidirectional link）
    • D、The neighboring router stops receiving ACK packets from this router

    正确答案:A,C

  • 第6题：

    When troubleshooting an EIGRP connectivity problem, you notice that two connected EIGRP routers are not becoming EIGRP neighbors. A ping between the two routers was successful.What is the next thing that should be checked?（）

    • A、Verify that the EIGRP hello and hold timers match exactly.
    • B、Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP peer command.
    • C、Verify that EIGRP broadcast packets are not being dropped between the two routers with the show ip EIGRP traffic command.
    • D、Verify that EIGRP is enabled for the appropriate networks on the local and neighboring router.

    正确答案:D

  • 第7题：

    What are two reasons a network administrator would use CDP?（）

    • A、to verify the type of cable interconnecting two devices
    • B、to determine the status of network services on a remote device
    • C、to obtain VLAN information from directly connected switches
    • D、to verify Layer 2 connectivity between two devices when Layer 3 fails
    • E、to obtain the IP address of a connected device in order to telnet to the device
    • F、to determine the status of the routing protocols between directly connected routers

    正确答案:D,E

  • 第8题：

    Which of the following commands verifies connectivity between two hosts?（）

    • A、chkntfs
    • B、dxdiag
    • C、tracert
    • D、ipconfig
    • E、ping

    正确答案:C,E

  • 第9题：

    单选题
    A TestKing.com technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command. In which OSI layer is the problem most likely occurring?（）
    A

    Physical

    B

    Data link

    C

    Network layer

    D

    Transport layer

    E

    Application layer


    正确答案： D
    解析： 暂无解析

  • 第10题：

    多选题
    Which of the following commands verifies connectivity between two hosts?（）
    A

     chkntfs

    B

     dxdiag

    C

     tracert

    D

     ipconfig

    E

     ping


    正确答案： C,E
    解析： 暂无解析

  • 第11题：

    多选题
    While troubleshooting an EIGRP routing problem you notice that one of the company routers havegenerated a large number of SIA messages. What are two possible causes for EIGRP Stuck-In-Active routes？（）
    A

    Some query or reply packets are lost between the routers

    B

    The neighboring router starts receiving route updates from this router

    C

    A failure causes traffic on a link between two neighboring routers to flow in only one direction（unidirectional link）

    D

    The neighboring router stops receiving ACK packets from this router


    正确答案： A,C
    解析： 暂无解析

  • 第12题：

    单选题
    The administrator is unable to establish connectivity between two Cisco routers. Upon reviewing the command output of both routers, what is the most likely caust of the problem?（）
    A

    Authentication needs to be changed to PAP for both routers.

    B

    Serial IP addresses of routers are not on the same subnet.

    C

    Username/password is incorrectly configured.

    D

    Router names are incorrectly configured.


    正确答案： D
    解析： 暂无解析

  • 第13题：

    What are two reasons a network administrator would use CDP?()

    A. to verify the type of cable interconnecting two devices

    B. to determine the status of network services on a remote device

    C. to obtain VLAN information from directly connected switches

    D. to verify Layer 2 connectivity between two devices when Layer 3 fails

    E. to obtain the IP address of a connected device in order to telnet to the device

    F. to determine the status of the routing protocols between directly connected routers


    参考答案：D, E

  • 第14题：

    If the OSPF protocol is used to connect customer edge （CE） routers to service provider edge（PE） routers in the VPN backbone， which two options best describe the use of SHAM links？（）

    • A、A sham-link is created between any twoo VPN sites that belong to the same OSPF area and share an OSPF backdoor link
    • B、A sham-link is seen as an intra-area link between PE routers，an OSPF adjacency is created and data base is exchanged
    • C、A SHAM link is created between two directly connected PE routers so that it is preferred over the low speed backdoor door
    • D、A SHAM link is part of OSPF network of MPLS-VPN provider

    正确答案:A,B

  • 第15题：

    While troubleshooting an EIGRP routing problem you notice that one of the routers have generated a large number of SIA messages. What are two possible causes for EIGRP Stuck - In -Active routes?（）

    • A、Some quer y or reply packets are lost between the routers.
    • B、The neighboring router starts receiving route updates from this router.
    • C、A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link).
    • D、Th e neighboring router stops receiving ACK packets from this router.

    正确答案:A,C

  • 第16题：

    Which of the following are the BEST tools to test connectivity between two hosts？（）

    • A、netstat
    • B、nslookup
    • C、ipconfig
    • D、traceroute
    • E、pathping

    正确答案:D,E

  • 第17题：

    All WAN links is side the TestKing.com network use PPP with for authentication security. Which command will display the CHAP authentication process as it occurs between two routers in the network?（）

    • A、show CHAP authentication
    • B、show interface serial 0
    • C、debug PPP authentication
    • D、debug CHAP authentication
    • E、show PPP authentication CHAP

    正确答案:C

  • 第18题：

    What are two reasons a network administrator would use CDP (Choose two.)（）。

    • A、to verify the type of cable interconnecting two devices
    • B、to determine the status of network services on a remote device
    • C、to obtain VLAN information from directly connected switches
    • D、to verify Layer 2 connectivity between two devices when Layer 3 fails
    • E、to obtain the IP address of a connected device in order to telnet to the device
    • F、to determine the status of the routing protocols between directly connected routers

    正确答案:D,E

  • 第19题：

    A technician is troubleshooting a lack of Internet connectivity affecting their entire office. The technician suspects the issue is with their Internet Service Provider failing to provide service.Which of the following command line tools should the technician use to BEST test this theory？（）

    • A、tracert
    • B、ipconfig
    • C、netstat
    • D、nslookup

    正确答案:A

  • 第20题：

    A technician needs to troubleshoot connectivity between two devices located on the same network. Which of the following BEST describes the type of protocol being used?（）

    • A、IGP
    • B、EIGRP
    • C、EGP
    • D、BGP

    正确答案:A

  • 第21题：

    多选题
    What are two reasons a network administrator would use CDP? （）
    A

    to verify the type of cable interconnecting two devices

    B

    to determine the status of network services on a remote device

    C

    to obtain VLAN information from directly connected switches

    D

    to verify Layer 2 connectivity between two devices when Layer 3 fails

    E

    to obtain the IP address of a connected device in order to telnet to the device

    F

    to determine the status of the routing protocols between directly connected routers


    正确答案： B,A
    解析： 暂无解析

  • 第22题：

    多选题
    While troubleshooting an EIGRP routing problem you notice that one of the routers have generated a large number of SIA messages. What are two possible causes for EIGRP Stuck - In -Active routes?（）
    A

    Some quer y or reply packets are lost between the routers.

    B

    The neighboring router starts receiving route updates from this router.

    C

    A failure causes traffic on a link between two neighboring routers to flow in only one direction(unidirectional link).

    D

    Th e neighboring router stops receiving ACK packets from this router.


    正确答案： C,D
    解析： 暂无解析

  • 第23题：

    多选题
    What are two reasons a network administrator would use CDP (Choose two.)（）。
    A

    to verify the type of cable interconnecting two devices

    B

    to determine the status of network services on a remote device

    C

    to obtain VLAN information from directly connected switches

    D

    to verify Layer 2 connectivity between two devices when Layer 3 fails

    E

    to obtain the IP address of a connected device in order to telnet to the device

    F

    to determine the status of the routing protocols between directly connected routers


    正确答案： C,D
    解析： 暂无解析

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